correct semantics for ul in ul

Question

I am writing ul inside ul to make a accordion type of menu. But when I check my code below in html validator it gives me these errors

Answer 1

You must wrap every inner ULs with an LI, i.e.

    

        Uutiset
    
    
 <----
        

            
Fringilla Condimentum
            
Lorem
        
    
 <----